ONLYOFFICE Docs, the best MS Office Online alternative

Using Office Open XML as a core format, ONLYOFFICE Docs provides the highest compatibility with Microsoft Office files: DOCX, XLSX, and PPTX.

With ONLYOFFICE, you can work online from any browser and OS, edit docs offline with the free desktop apps for Windows, Linux, and macOS, as well as use free mobile apps for Android and iOS.

Edit and collaborate on text documents and spreadsheets of any complexity, create stunning presentations using a vast range of editing and styling tools. Create professional-looking forms and templates from scratch or any existing DOCX file, let other users fill them out, and save forms as fillable PDF files.

ONLYOFFICE Docs provides users with character- and paragraph-level co-editing modes, review and track changes, version history, comments and mentions, built-in chat, plugins for audio and video calls. You can easily share your documents with flexible permissions such as commenting, reviewing, filling forms, custom filtering.

Open-source ONLYOFFICE solutions can be deployed on your own server so that all the data remains completely in-house. Private Rooms allow storing, editing, and co-authoring docs in always-encrypted form.

Unlike the tech giants, ONLYOFFICE doesn’t lock the customers into its collaborative ecosystem. You are free to choose how to use the online editors: together with ONLYOFFICE Workspace, within any sync&share or ECM service like Nextcloud, Alfresco, Confluence, Seafile, etc., or integrated into the solution you’re building yourself.